Intelligent opening device and method for engine nacelle production
The automated assembly of the engine nacelle air intake fairing is achieved by using an intelligent opening device, which solves the problems of low precision and insufficient stability of manual assembly, improves production efficiency and assembly accuracy, ensures the stability and aerodynamic optimization effect of the spoiler, and enhances the working stability and aerodynamic performance of the engine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU SUNFEN ALUMINIUM CO LTD
- Filing Date
- 2026-04-16
- Publication Date
- 2026-07-07
Smart Images
Figure CN122033124B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of engine nacelle production technology, specifically relating to an intelligent opening device and method for engine nacelle production. Background Technology
[0002] Installing spoilers on the engine nacelle inlet cowling offers key benefits: optimizing the intake airflow field, suppressing airflow separation, and improving engine stability and efficiency. During takeoff, landing, or high angle-of-attack flight, airflow distortion and localized separation can easily occur in the intake, leading to increased compressor surge risk and decreased thrust. Spoilers can generate controllable directional vortices, mixing low-energy boundary layer airflow with mainstream high-energy airflow, smoothing out velocity and pressure unevenness, and making the airflow entering the fan more uniform and stable. This significantly reduces the intake distortion index, decreasing engine performance degradation and the probability of malfunctions caused by airflow turbulence, especially under adverse conditions such as crosswinds and high angles of attack, effectively widening the engine's stable operating envelope. Simultaneously, spoilers can also weaken turbulence and noise sources within the intake, reducing aerodynamic noise transmission to the cabin and improving passenger comfort.
[0003] Secondly, spoilers can optimize the aerodynamic coupling between the nacelle and the wing, improving the overall low-speed aerodynamic performance. Engine nacelles and pylons disrupt the continuity of the wing's leading edge, interfering with the airflow attachment of lift-enhancing devices (slats, flaps), leading to a decrease in localized wing lift and premature stall. The downwash vortex generated by the fairing spoilers can "repair" the flow field distortion downstream of the nacelle, guiding airflow to smoothly adhere to the upper wing surface, delaying airflow separation, and improving the lift-enhancing efficiency of slats and flaps. This, in turn, improves the aircraft's low-speed lift-to-drag ratio, shortens takeoff distance, and improves low-speed handling during landing. Furthermore, well-designed spoilers can reduce aerodynamic interference drag between the nacelle and the wing, slightly reducing overall fuel consumption during cruise, balancing low-speed safety and cruise economy.
[0004] Currently, the drilling and assembly operations for installing combined spoilers on the engine nacelle air intake fairing are still mainly done manually or semi-automatically, presenting numerous technical challenges that urgently need to be addressed: First, the air intake fairing has an arc-shaped annular structure, making manual positioning inaccurate and difficult to ensure the uniform circumferential distribution of the I-shaped slots. Furthermore, the inconsistent stamping dimensions of the slots can easily lead to misalignment of subsequent internal support reinforcement blocks and spoilers, affecting the assembly accuracy of the spoilers and thus weakening their aerodynamic optimization effect. Second, the workflow is fragmented, involving tasks such as slotting, loading and bending of internal support reinforcement blocks, transferring and positioning spoilers, and angle adjustment. The processes of sectioning, locking, and fixing require manual switching of workstations or the use of multiple independent machines. The process connections are cumbersome, and the amount of manual intervention is large. This not only leads to low production efficiency, but also makes it easy for assembly defects to be caused by human operation errors, increasing rework costs. Thirdly, the positioning of the internal support reinforcement block, the bending limit of the I-shaped groove, and the angle adjustment of the spoiler all rely on manual experience. The adjustment accuracy is difficult to control, and problems such as insecure bending limit and deviation of spoiler angle are easy to occur. As a result, the stability of the combined spoiler is insufficient after installation. Under the complex working conditions of aircraft flight, it is easy to loosen or fall off, posing a safety hazard. Summary of the Invention
[0005] The purpose of this invention is to overcome the above-mentioned problems existing in the prior art and to provide an intelligent opening device and method for engine nacelle production.
[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:
[0007] This invention provides an intelligent opening device for engine nacelle production, including an opening assembly station, a clamping assembly located directly above the opening assembly station, and a punching assembly, an inner support reinforcing block feeding and bending assembly, a spoiler transfer and positioning assembly, a pin clamping angle adjustment assembly, and a screw tightening machine arranged sequentially around the opening assembly station; the clamping assembly adsorbs and clamps the air intake fairing and drives it to rotate around its own axis; the punching assembly punches several sets of circumferentially evenly distributed grooves on both sides of the annular cavity of the air intake fairing. I-shaped groove; the inner support reinforcing block feeding and bending assembly feeds the inner support reinforcing block and bends the two side plates of the I-shaped groove to form a bending limiting plate for limiting the inner support reinforcing block; the spoiler transfer and positioning assembly moves the spoiler to a preset position; the pin shaft clamping angle adjustment assembly clamps the pin shaft and adjusts the angle of the spoiler; the screw tightening machine screws in the fastener to lock the spoiler and the inner support reinforcing block; the inner support reinforcing block, spoiler, pin shaft and fastener constitute a combined spoiler, and is clamped and fixed at the corresponding original I-shaped groove by the bending limiting plate.
[0008] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the inner support reinforcing block includes a reinforcing block body adapted to the shape of the annular cavity in the air intake fairing. The inner and outer sides of the reinforcing block body are provided with receiving grooves for accommodating the bending limiting plate. A connecting groove is provided between the two receiving grooves to facilitate the installation of the spoiler and angle adjustment. The lower side of the reinforcing block body is recessed inward to form a pin engagement groove to facilitate the installation of the pin. Multiple sets of fastening holes adapted to fasteners are symmetrically opened on both sides of the reinforcing block body, and the fastening holes are connected to the connecting groove.
[0009] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the spoiler is integrally formed by a column and spoiler plates symmetrically fixed on both sides of the column. The column has a through hole adapted to the pin along its axial direction. The inner wall of the through hole is provided with a keyway. The outer circumferential side of the column has multiple locking grooves, and the height of the locking grooves is adapted to the height of the fastening holes on the reinforcing block body.
[0010] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the pin is formed by integrally connecting an end head, a wide shaft, and a narrow shaft. The outer diameter of the narrow shaft is adapted to the inner diameter of the perforation of the spoiler. The outer side of the narrow shaft is provided with a convex key adapted to the keyway of the inner wall of the perforation. The bottom end of the end head is provided with a hexagonal groove to facilitate the rotation of the pin.
[0011] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the clamping assembly includes a clamping base plate, a first lifting push rod, a first telescopic joint tube, a mounting plate, a rotary driver, an annular carrier plate, an annular adsorption block, and a vacuum pump. The clamping base plate is supported and connected to the mounting plate via the first lifting push rod and the first telescopic joint tube. The bottom of the mounting plate is connected to the annular carrier plate via the rotary driver. An annular adsorption block is installed on the lower side of the annular carrier plate, and a vacuum pump is installed on the upper side. The bottom side of the annular adsorption block has a groove that matches the shape of the front edge of the air intake fairing. The interior of the annular adsorption block has an adsorption cavity. The inner wall of the groove and the adsorption cavity are connected by several evenly distributed adsorption holes. The suction pipe of the vacuum pump is sealed and connected to the adsorption cavity. By drawing a vacuum with the vacuum pump, the adsorption holes generate adsorption force, thereby achieving stable clamping of the air intake fairing.
[0012] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the grooving assembly includes a first slotted plate, a pressure block, a first lead screw motor, a first lead screw, a first movable plate, a first horizontal push rod, and an I-shaped punch. A pressure block capable of engaging an annular cavity within the web of the first slotted plate is installed. An I-shaped stamping groove adapted to the I-shaped punch is perforated through the pressure block near the rear edge of the air intake shroud. A first lead screw motor is installed on the outer bottom of the pressure block, and the output shaft of the first lead screw motor is connected via a... The steering gear set inside the pressure block is connected to the middle of the first lead screw. The first lead screw is supported by the first groove plate and the pressure block. The first lead screw has two sections with opposite directions of rotation. Each first lead screw section is fitted with a first movable plate that is threaded to it. The inner end of the first movable plate slides against the inner wall of the first groove plate. The outer end of the first movable plate is fixedly installed with a first horizontal push rod. The movable end of the first horizontal push rod is fitted with an I-shaped punch that is adapted to the I-shaped stamping groove.
[0013] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the inner support reinforcing block feeding and bending assembly includes a feeding base plate, a second lifting push rod, a second telescopic joint tube, a second channel plate, a support block, a positioning protrusion, a second lead screw motor, a second lead screw, a second movable plate, a second horizontal push rod, and a first mechanical gripper. The feeding base plate is supported and connected to the second channel plate via the second lifting push rod and the second telescopic joint tube. A support block is installed on the inner side of the web of the second channel plate. The upper end face of the support block has a positioning groove adapted to the shape of the inner support reinforcing block. The bottom surface of the positioning groove has a positioning protrusion adapted to the bottom of the pin engagement groove in the inner support reinforcing block for precise positioning of the inner support reinforcing block. The bottom of the support block has an outer... A second lead screw motor is mounted on the side. The output shaft of the second lead screw motor is connected to the middle part of the second lead screw through a steering gear set located inside the support block. The second lead screw is movably supported by a second grooved plate and a support block. The second lead screw has two sections with opposite rotation directions. Each second lead screw section has a second movable plate that is threadedly fitted to its outer side. The inner end of the second movable plate slides against the inner wall of the second grooved plate. A second horizontal push rod is fixedly installed at the outer end of the second movable plate. A first mechanical gripper is installed at the movable end of the second horizontal push rod. The first mechanical gripper has two outward-turning claws. The outward-turning claws can squeeze the two side plates at the I-shaped groove to achieve inward bending of the two side plates.
[0014] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the spoiler transfer and positioning assembly includes a linear guide pair, a third movable plate, a third horizontal push rod, and a second mechanical gripper. The inner end of the third movable plate is fixed to the outside of the slider of the linear guide pair and can slide along the linear guide pair with the slider. The outer end of the third movable plate is equipped with a third horizontal push rod, and the movable end of the third horizontal push rod is equipped with a second mechanical gripper. The second mechanical gripper has two translational claws, which can accurately clamp the spoiler portion of the spoiler to realize the transfer and positioning of the spoiler.
[0015] Furthermore, in the aforementioned intelligent opening device for engine nacelle production, the pin pin clamping angle adjustment assembly includes a feeding bracket, a third lifting push rod, a rotary joint, a support shaft, a hexagonal clamp, a tilting motor, and a gearbox. The feeding bracket is respectively equipped with the third lifting push rod, the tilting motor, and the gearbox. The movable end of the third lifting push rod is rotatably connected to the lower end of the support shaft through the rotary joint. The upper end of the support shaft is equipped with a hexagonal clamp adapted to the hexagonal slot for clamping and fixing the pin pin. Symmetrically arranged axially extending torque transmission grooves are provided on the outer side of the support shaft. The output shaft of the tilting motor extends into the gearbox and is equipped with a driving bevel gear. The outer side of the shaft of the support shaft located inside the gearbox is fitted with a driven bevel gear that meshes with the driving bevel gear. Symmetrically arranged torque transmission protrusions adapted to the torque transmission grooves are provided on the inner wall of the driven bevel gear. Through the meshing transmission of the driving bevel gear and the driven bevel gear, the support shaft is driven to rotate, thereby driving the pin pin to rotate and adjust the angle of the spoiler.
[0016] The present invention also provides an intelligent drilling method for engine nacelle production, which is based on the above-mentioned intelligent drilling device for engine nacelle production, and includes the following steps:
[0017] S1. Workpiece loading and positioning: The intake hood is forked to the top of the opening assembly station. The vacuum pump of the clamping component is started. The annular adsorption block generates adsorption force through the adsorption hole. It works with the slot to stably clamp the intake hood. At the same time, the first lifting push rod adjusts the height of the intake hood to the preset assembly position. The rotary drive is in the ready-to-start state.
[0018] S2. I-shaped slot stamping: Start the slotting assembly. The first lead screw motor drives the first lead screw to rotate through the steering gear set. Since the first lead screw has two sections with opposite rotation directions, it drives the two first movable plates to move closer to each other. Simultaneously, it drives the first horizontal push rod to extend, so that the I-shaped punch is aligned with the preset stamping position on both sides of the annular cavity of the air intake shroud. The I-shaped punch cooperates with the I-shaped stamping slot on the pressure block to complete the stamping of a set of I-shaped slots. After the stamping is completed, the first horizontal push rod retracts, the first lead screw motor reverses to drive the first movable plate to reset, and the rotary driver drives the air intake shroud to rotate by a preset angle. Repeat the above actions to complete the uniform stamping of all I-shaped slots.
[0019] S3. Installation and Limiting of Inner Support Reinforcing Block: Place the inner support reinforcing block into the positioning groove of the support block of the inner support reinforcing block feeding and bending assembly. The positioning protrusion is engaged with the bottom of the pin engagement groove of the inner support reinforcing block to achieve precise positioning. Activate the second lifting push rod and the second telescopic joint tube to move the inner support reinforcing block into the annular cavity of the air intake shroud, making it fit against the inner wall of the annular cavity. Then, activate the second lead screw motor, which drives the second lead screw to rotate through the steering gear set, causing the two second movable plates to move closer together. The second horizontal push rod extends, and the outward-turning claws of the first mechanical gripper press against the two side plates at the I-shaped groove, causing them to bend inward to form a bending limiting plate. The bending limiting plate is engaged in the storage groove of the inner support reinforcing block, completing the limiting and fixing of the inner support reinforcing block.
[0020] S4. Spoiler Installation: Activate the linear guide pair of the spoiler transfer and positioning assembly, which drives the third movable plate to move to the spoiler storage position. The third horizontal push rod extends, and the translational claw of the second mechanical gripper clamps the spoiler plate part of the spoiler. Then, the linear guide pair resets, and the third horizontal push rod extends again, sending the column part of the spoiler into the connecting groove of the inner support reinforcing block, completing the initial installation and positioning of the spoiler.
[0021] S5. Spoiler Angle Adjustment: Attach the pin to the hexagonal clip of the pin angle adjustment assembly, activate the third lifting push rod to raise the pin, causing the narrow shaft of the pin to engage with the through hole of the spoiler through the pin slot of the inner support reinforcing block. The convex key and keyway cooperate to achieve torque transmission. Activate the tilting motor, which drives the support shaft to rotate through the meshing of the active and driven bevel gears, thereby rotating the pin and adjusting the spoiler to the preset installation angle. After adjustment, the third lifting push rod retracts, and the hexagonal clip separates from the pin.
[0022] S6. Locking and Unloading: Start the screw-tightening machine and screw the fasteners into the fastening holes from both sides of the inner support reinforcing block. The fasteners engage with the locking grooves of the spoiler column to lock and fix the spoiler to the inner support reinforcing block, completing the assembly of the combined spoiler. After all the combined spoilers are assembled, the vacuum pump stops working, releasing the suction on the intake fairing. The first lifting push rod rises and forks the assembled intake fairing to the designated unloading position, completing the single hole-opening assembly operation.
[0023] The beneficial effects of this invention are:
[0024] 1. The intake fairing is stably clamped by the annular adsorption block of the clamping component and the slot. The rotary driver drives it to rotate precisely, ensuring that the I-shaped slots stamped by the grooving component are evenly distributed around the circumference. The grooving component ensures the consistency of the I-shaped slot size through the precise cooperation between the I-shaped punch and the pressure block. The positioning protrusion of the inner support reinforcement block feeding bending component enables the precise positioning of the inner support reinforcement block. The convex key of the pin component cooperates with the keyway of the spoiler component. Combined with the angle adjustment structure driven by the flip motor, the spoiler component can be precisely adjusted to the preset angle to ensure the assembly accuracy of the combined spoiler and give full play to its role in optimizing the intake airflow field and improving engine stability.
[0025] 2. The process of punching, bending of internal support reinforcing blocks, transfer and positioning of deflector parts, angle adjustment, and screw tightening is integrated into one. The functional components are arranged around the hole assembly station, eliminating the need for manual switching of stations or handling of workpieces, and the process is seamlessly connected. This achieves automated operation, reduces rework costs caused by human error, and is suitable for large-scale mass production.
[0026] 3. The inner support reinforcement block is limited by the bending limiting plate and the I-shaped groove, and is locked by the fastener and the locking groove of the spoiler to achieve double fixation of the combined spoiler, ensuring that it will not loosen or fall off and eliminating safety hazards; the clamping component adopts vacuum pump adsorption clamping, which can not only achieve stable fixation of the air intake shroud, but also avoid damage to the workpiece surface during the clamping process.
[0027] 4. The combined spoiler of the present invention has two spoiler sections, inner and outer. Compared with a single spoiler structure, it can more comprehensively cover the airflow area of the annular cavity of the intake shroud, enhance the disturbance and mixing effect on the intake airflow field, further optimize the airflow uniformity, and improve the engine intake efficiency and working stability. At the same time, the circumferential tilt angle of the spoiler can be pre-adjusted by using the pin-mounted angle adjustment component, thus broadening the application range of the spoiler.
[0028] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0031] Figure 2 This is a schematic diagram of the process of opening holes in the air intake fairing and assembling combined spoilers according to the present invention.
[0032] Figure 3 This is a half-sectional schematic diagram of the air intake fairing in this invention;
[0033] Figure 4 This is a schematic diagram of the combined spoiler structure in this invention;
[0034] Figure 5 This is an exploded view of the combined spoiler in this invention;
[0035] Figure 6 This is a half-sectional schematic diagram of the internal support reinforcement block in this invention;
[0036] Figure 7 This is a schematic diagram of the structure of the turbulence-disrupting component in this invention;
[0037] Figure 8 This is a half-sectional schematic diagram of the pin component in this invention;
[0038] Figure 9 This is a schematic diagram of the clamping component in the present invention;
[0039] Figure 10 This is a front view schematic diagram of the clamping component in this invention;
[0040] Figure 11 This is a schematic diagram of the grooving assembly in this invention;
[0041] Figure 12 This is a schematic diagram of the internal support reinforcing block feeding and bending assembly in this invention;
[0042] Figure 13 This is a schematic diagram of the structure of the disturbance component transfer and positioning assembly in this invention;
[0043] Figure 14 This is a schematic diagram of the pin shaft mounting angle adjustment assembly in this invention;
[0044] In the attached diagram, the components represented by each number are as follows:
[0045] 1-Clamping assembly, 101-Clamping base plate, 102-First lifting push rod, 103-First telescopic joint tube, 104-Mounting plate, 105-Rotary driver, 106-Annular carrier plate, 107-Annular adsorption block, 108-Vacuum pump, 109-Slot, 110-Adsorption chamber, 111-Adsorption hole;
[0046] 2-Slotting assembly, 201-First slot plate, 202-Pressure block, 203-I-shaped stamping slot, 204-First lead screw motor, 205-First lead screw, 206-First lead screw section, 207-First movable plate, 208-First horizontal push rod, 209-I-shaped punch;
[0047] 3-Inner support reinforcing block feeding and bending assembly, 301-Feeding base plate, 302-Second lifting push rod, 303-Second telescopic joint tube, 304-Second channel plate, 305-Support block, 306-Positioning protrusion, 307-Second lead screw motor, 308-Second lead screw, 309-Second lead screw section, 310-Second movable plate, 311-Second horizontal push rod, 312-First mechanical gripper;
[0048] 4-Breakout component transfer and positioning assembly, 401-Linear guide rail pair, 402-Third movable plate, 403-Third horizontal push rod, 404-Second mechanical gripper;
[0049] 5-Pin shaft clamping angle adjustment assembly, 501-Feeding bracket, 502-Third lifting push rod, 503-Rotary joint, 504-Support shaft, 505-Hexagonal chuck, 506-Tilting motor, 507-Gear box;
[0050] 6-Inlet fairing, 601-Annular cavity, 602-I-shaped groove, 603-Bending limiting plate;
[0051] 7-Combined spoiler, 71-Inner support reinforcing block, 711-Reinforcing block body, 712-Receiving groove, 713-Connecting groove, 714-Pin engagement groove, 715-Fastening hole, 72-Spoiler, 721-Column, 722-Spoiler part, 723-Through hole, 724-Keyway, 725-Locking groove, 73-Pin, 731-End head, 732-Wide shaft part, 733-Narrow shaft part, 734-Protruding key, 735-Hexagonal groove, 74-Fastener. Detailed Implementation
[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0053] like Figures 1-4 As shown, this embodiment provides an intelligent opening device for engine nacelle production, including an opening assembly station for opening holes in the intake fairing 6 and assembling the combined spoiler 7, a clamping assembly 1 located directly above the opening assembly station, and a punching assembly 2, an inner support reinforcing block feeding and bending assembly 3, a spoiler transfer and positioning assembly 4, a pin shaft clamping angle adjustment assembly 5, and a screw tightening machine arranged sequentially around the opening assembly station. Clamping assembly 1 adsorbs and clamps the air intake shroud 6 and drives it to rotate around its own axis; punching assembly 2 punches several sets of circumferentially evenly distributed I-shaped grooves 602 on both sides of the annular cavity 601 of the air intake shroud 6; inner support reinforcing block feeding and bending assembly 3 feeds into the inner support reinforcing block 71 and bends the plates on both sides of the I-shaped groove 602 to form a bending limiting plate 603 that limits the inner support reinforcing block 71; spoiler transfer and positioning assembly 4 moves the spoiler 72 to a preset position; pin shaft clamping angle adjustment assembly 5 clamps into the pin shaft 73 and adjusts the angle of the spoiler 72; screw fastener 74 is screwed in by a screw tightener to lock the spoiler 72 and the inner support reinforcing block 71; the inner support reinforcing block 71, spoiler 72, pin shaft 73 and fastener 74 constitute a combined spoiler 7, and are clamped and fixed at the corresponding original I-shaped groove 602 by the bending limiting plate 603.
[0054] like Figures 5-6 As shown, the inner support reinforcing block 71 includes a reinforcing block body 711 that is adapted to the shape of the annular cavity 601 in the air intake shroud 6. The inner and outer sides of the reinforcing block body 711 are provided with receiving grooves 712 for accommodating the bending limiting plate 603. A connecting groove 713 is provided between the two receiving grooves 712 to facilitate the installation and angle adjustment of the spoiler 72. The lower side of the reinforcing block body 711 is recessed inward to form a pin engagement groove 714 to facilitate the installation of the pin 73. Multiple sets of fastening holes 715 adapted to the fasteners 74 are symmetrically provided on both sides of the reinforcing block body 711, and the fastening holes 715 are connected to the connecting groove 713.
[0055] like Figure 7 As shown, the spoiler 72 is integrally formed from a column portion 721 and spoiler portions 722 symmetrically fixed on both sides of the column portion 721. The column portion 721 has a through hole 723 along its axial direction that is adapted to the pin portion 73, and the inner wall of the through hole 723 is provided with a keyway 724. Multiple locking grooves 725 are formed on the outer circumferential direction of the column portion 721, and the height position of the locking grooves 725 is adapted to the height position of the fastening hole 715 on the reinforcing block body 711.
[0056] like Figure 8As shown, the pin 73 is integrally formed by the head 731, the wide shaft portion 732 and the narrow shaft portion 733 connected in sequence. The outer diameter of the narrow shaft portion 733 is adapted to the inner diameter of the through hole 723 of the baffle 72. The outer side of the narrow shaft portion 733 is provided with a protruding key 734 adapted to the keyway 724 on the inner wall of the through hole 723. The bottom end of the head 731 is provided with a hexagonal groove 735 to facilitate the rotation of the pin 73.
[0057] like Figures 9-10 As shown, the clamping assembly 1 includes a clamping base plate 101, a first lifting push rod 102, a first telescopic joint tube 103, a mounting plate 104, a rotary driver 105, an annular carrier plate 106, an annular adsorption block 107, and a vacuum pump 108. The clamping base plate 101 is supported and connected to the mounting plate 104 via the first lifting push rod 102 and the first telescopic joint tube 103. The bottom of the mounting plate 104 is connected to the annular carrier plate 106 via the rotary driver 105. An annular adsorption block 107 is mounted on the lower side of the annular carrier plate 106, and a vacuum pump 108 is mounted on the upper side. The bottom side of the annular adsorption block 107 is provided with a groove 109 that matches the shape of the front edge of the air intake shroud 6. The interior of the annular adsorption block 107 is provided with an adsorption cavity 110. The inner wall of the groove 109 and the adsorption cavity 110 are connected by a number of evenly distributed adsorption holes 111. The suction pipe of the vacuum pump 108 is sealed and connected to the adsorption cavity 110. The vacuum pump 108 draws a vacuum to generate an adsorption force in the adsorption holes 111, thereby achieving stable clamping of the air intake shroud 6.
[0058] The working principle of clamping component 1 is as follows:
[0059] The core function of clamping component 1 is to achieve stable clamping, height adjustment, and circumferential rotation of the air intake shroud 6, providing a precise positioning reference for subsequent processes. Its working principle is based on a dual fixing logic of "vacuum adsorption + mechanical limiting": the vacuum pump 108 draws a vacuum to generate negative pressure in the adsorption chamber 110, and atmospheric pressure is used to press the air intake shroud 6 into the slot 109 of the annular adsorption block 107, achieving stable clamping without damage; at the same time, the first lifting push rod 102 adjusts the workpiece height to a preset position suitable for the operation of each component, and the rotary driver 105 drives the workpiece to rotate around its own axis, ensuring that each circumferential station can process the workpiece sequentially without the need for manual adjustment of the workpiece posture. Specific power transmission logic: The first lifting push rod 102 extends and retracts to drive the mounting plate 104 and all components below it to rise and fall, thereby adjusting the workpiece height; the rotating ring of the rotary drive 105 is rigidly connected to the annular carrier plate 106, driving the annular carrier plate 106 and the air intake rectifier 6 fixed by adsorption to rotate synchronously; the vacuum pump 108 extracts the air in the adsorption chamber 110 through the suction pipe, so that the adsorption hole 111 and the workpiece surface form a negative pressure adsorption force, which, together with the shape limit of the slot 109, prevents the workpiece from shifting or shaking during rotation and processing.
[0060] like Figure 11 As shown, the grooving assembly 2 includes a first grooved plate 201, a pressure block 202, a first lead screw motor 204, a first lead screw 205, a first movable plate 207, a first horizontal push rod 208, and an I-shaped punch 209. The pressure block 202, which can be inserted into the annular cavity 601 of the air intake shroud 6, is installed on the inner side of the web of the first grooved plate 201. An I-shaped stamping groove 203, adapted to the I-shaped punch 209, is formed through the pressure block 202 near the rear edge of the air intake shroud 6. The first lead screw motor 204 is installed on the outer bottom of the pressure block 202. The output shaft of the first lead screw motor 204 is connected to the middle of the first lead screw 205 via a steering gear set located inside the pressure block 202. The first lead screw 205 is provided with movable support by the first grooved plate 201 and the pressure block 202. The first lead screw 205 is provided with two first lead screw sections 206 with opposite directions of rotation. Each first lead screw section 206 is fitted with a first movable plate 207 that is threadedly engaged with it. The inner end of the first movable plate 207 slides against the inner wall of the first groove plate 201. The outer end of the first movable plate 207 is fixedly installed with a first horizontal push rod 208. The movable end of the first horizontal push rod 208 is equipped with an I-shaped punch 209 that is compatible with the I-shaped stamping groove 203.
[0061] The working principle of the grooving assembly 2 is as follows:
[0062] The core function of the grooving assembly 2 is to stamp circumferentially evenly distributed I-shaped grooves 602 on both sides of the annular cavity 601 of the intake fairing 6, providing a basic structure for the subsequent installation and positioning of the internal support reinforcement block 71. Its working principle is based on the logic of "symmetrical stamping + precise positioning": the pressure block 202 is inserted into the annular cavity 601 as a stamping support, the I-shaped punch 209 and the I-shaped stamping groove 203 on the pressure block 202 are correspondingly matched, and the stamping power is provided by the first horizontal push rod 208 to realize the one-time forming of the I-shaped groove 602; at the same time, the first lead screw motor 204 drives the two first movable plates 207 to move relative to each other to ensure that the I-shaped punches 209 on both sides are stamped synchronously and to ensure the symmetry of the groove; the first lead screw 205 is provided with two first lead screw sections 206 with opposite directions of rotation, which can realize the synchronous approach or distance of the two first movable plates 207, improving the stamping efficiency and the consistency of the groove size. The specific power transmission logic is as follows: The output shaft of the first lead screw motor 204 changes the power transmission direction through the steering gear set (bevel gear meshing), driving the first lead screw 205 to rotate. Since the two sections 206 of the first lead screw 205 rotate in opposite directions, the two threaded first movable plates 207 move closer to each other synchronously when the lead screw rotates, causing the first horizontal push rod 208 and the I-shaped punch 209 to move synchronously towards the workpiece. The first horizontal push rod 208 extends, pushing the I-shaped punch 209 to press the workpiece surface, cooperating with the I-shaped stamping groove 203 of the pressure block 202 to complete the stamping of the I-shaped groove 602. After the stamping is completed, the first horizontal push rod 208 retracts, the first lead screw motor 204 reverses, driving the first movable plate 207 and the I-shaped punch 209 to reset, waiting for the next stamping.
[0063] like Figure 12As shown, the inner support reinforcing block feeding and bending assembly 3 includes a feeding base plate 301, a second lifting push rod 302, a second telescopic joint tube 303, a second channel plate 304, a support block 305, a positioning protrusion 306, a second lead screw motor 307, a second lead screw 308, a second movable plate 310, a second horizontal push rod 311, and a first mechanical gripper 312. The feeding base plate 301 is supported and connected to the second channel plate 304 through the second lifting push rod 302 and the second telescopic joint tube 303. The support block 305 is installed on the inner side of the web of the second channel plate 304. The upper end face of the support block 305 is provided with a positioning groove that matches the shape of the inner support reinforcing block 71. The bottom surface of the positioning groove is provided with a positioning protrusion 306 that matches the bottom of the pin engagement groove 714 in the inner support reinforcing block 71, for precise positioning of the inner support reinforcing block 71. A second lead screw motor 307 is mounted on the outer bottom of the support block 305. The output shaft of the second lead screw motor 307 is connected to the middle of the second lead screw 308 via a steering gear set located inside the support block 305. The second lead screw 308 is provided with movable support by the second grooved plate 304 and the support block 305. The second lead screw 308 has two sections 309 with opposite rotation directions. Each section 309 has a second movable plate 310 threadedly fitted to its outer side. The inner end of the movable plate 310 slides against the inner wall of the second grooved plate 304. A second horizontal push rod 311 is fixedly mounted on the outer end of the movable plate 310. A first mechanical gripper 312 is mounted on the movable end of the second horizontal push rod 311. The first mechanical gripper 312 has two outward-facing claws that can press the two side plates at the I-shaped groove 602, achieving inward bending of the two side plates.
[0064] The working principle of the inner support reinforcing block feeding and bending assembly 3 is as follows:
[0065] The core function of the inner support reinforcement block feeding and bending assembly 3 is to accurately feed, transfer, and position the inner support reinforcement block 71, as well as bend the plates on both sides of the I-shaped groove 602 to form a bending limiting plate 603 to fix the inner support reinforcement block 71. Its working principle is divided into two stages: In the feeding and transfer stage, the inner support reinforcement block 71 is accurately positioned by the positioning groove and positioning protrusion 306, and then transferred to the preset position in the annular cavity 601 by the second lifting push rod 302 and the second telescopic tube 303; In the bending stage, the second lead screw motor 307 drives the two second movable plates 310 to move closer to each other, driving the first mechanical gripper 312 to squeeze the plates on both sides of the I-shaped groove 602, causing them to bend inward and lock into the storage groove 712 of the inner support reinforcement block 71, thereby limiting and fixing the inner support reinforcement block 71 and preventing it from shifting in subsequent operations. Specific power transmission logic: The output shaft of the second lead screw motor 307 drives the second lead screw 308 to rotate through the steering gear set. The two sections of the second lead screw 309 with opposite rotation directions drive the two second movable plates 310 to move closer to each other synchronously. The second horizontal push rod 311 extends and pushes the first mechanical gripper 312 closer to the I-shaped groove 602. After the outward claws of the first mechanical gripper 312 open, they fit against the two side plates of the I-shaped groove 602, and then retract inward to squeeze the plate, causing it to bend inward to form a bending limit plate 603. After bending, the first mechanical gripper 312 releases, the second horizontal push rod 311 retracts, and the second lead screw motor 307 reverses to drive the second movable plate 310 to reset. During the material feeding and transfer process, the second lifting push rod 302 extends and retracts to adjust the height, and the second telescopic joint tube 303 adjusts the horizontal distance to accurately transfer the positioned inner support reinforcing block 71 into the annular cavity 601.
[0066] like Figure 13 As shown, the spoiler transfer and positioning assembly 4 includes a linear guide rail pair 401, a third movable plate 402, a third horizontal push rod 403, and a second mechanical gripper 404. The inner end of the third movable plate 402 is fixed to the outside of the slider of the linear guide rail pair 401 and can slide along the linear guide rail pair 401 with the slider. The outer end of the third movable plate 402 is equipped with the third horizontal push rod 403, and the movable end of the third horizontal push rod 403 is equipped with the second mechanical gripper 404. The second mechanical gripper 404 is provided with two translational claws, which can accurately grip the spoiler portion 722 of the spoiler 72, realizing the transfer and positioning of the spoiler 72.
[0067] The working principle of the spoiler transfer and positioning assembly 4 is as follows:
[0068] The core function of the spoiler transfer and positioning assembly 4 is to precisely transfer the spoiler 72 from its storage position to the connecting groove 713 of the inner support reinforcing block 71, completing the initial installation and positioning of the spoiler 72. Its working principle is based on the logic of "linear transfer + precise clamping": the linear guide pair 401 drives the third movable plate 402 and the second mechanical gripper 404 to move in a straight line, achieving long-distance transfer of the spoiler 72; the third horizontal push rod 403 adjusts the horizontal position of the second mechanical gripper 404, aligning it with the storage position of the spoiler 72 and the position of the connecting groove 713; the translational claw of the second mechanical gripper 404 precisely clamps the spoiler portion 722 of the spoiler 72, ensuring that the spoiler 72's posture remains unchanged during transfer, and finally precisely inserts the column portion 721 of the spoiler 72 into the connecting groove 713, providing a foundation for subsequent angle adjustment and locking. The specific power transmission logic is as follows: The motor of the linear guide pair 401 drives the slider to slide along the guide rail, which drives the third movable plate 402 and the third horizontal push rod 403 and the second mechanical gripper 404 above it to move synchronously; after the slider moves to the storage position of the spoiler 72, the third horizontal push rod 403 extends and drives the second mechanical gripper 404 to approach the spoiler 72; the translational claw of the second mechanical gripper 404 retracts and accurately clamps the spoiler plate 722 of the spoiler 72; then the slider of the linear guide pair 401 resets and drives the spoiler 72 to move above the inner support reinforcement block 71; the third horizontal push rod 403 extends again and sends the column 721 of the spoiler 72 into the connecting groove 713, and the second mechanical gripper 404 releases, completing the transfer and positioning.
[0069] like Figure 14 As shown, the pin-shaft clamping angle adjustment assembly 5 includes a feeding bracket 501, a third lifting push rod 502, a rotary joint 503, a support shaft 504, a hexagonal clamp 505, a tilting motor 506, and a gearbox 507. The feeding bracket 501 is equipped with the third lifting push rod 502, the tilting motor 506, and the gearbox 507. The movable end of the third lifting push rod 502 is rotatably connected to the lower end of the support shaft 504 through the rotary joint 503. The upper end of the support shaft 504 is equipped with a hexagonal clamp 505 that matches the hexagonal slot 735, used to clamp and fix the pin-shaft 73. Symmetrical torque-transmitting grooves extending axially are provided on the outer side of the support shaft 504. The output shaft of the flip motor 506 extends into the gear box 507 and is equipped with a driving bevel gear. A driven bevel gear that meshes with the driving bevel gear is sleeved on the outer side of the shaft body of the support shaft 504 inside the gear box 507. Symmetrical torque-transmitting protrusions that match the torque-transmitting grooves are provided on the inner wall of the driven bevel gear. Through the meshing transmission of the driving bevel gear and the driven bevel gear, the support shaft 504 is driven to rotate, which in turn drives the pin 73 to rotate and adjust the angle of the deflector 72.
[0070] The working principle of the pin-mounted angle adjustment assembly 5 is as follows:
[0071] The core function of the pin-shaft clamping angle adjustment assembly 5 is to complete the clamping and transfer of the pin-shaft 73, as well as the angle adjustment of the deflector 72, ensuring that the deflector 72 is at the preset aerodynamic optimization angle. Its working principle is divided into two stages: the clamping and transfer stage, where the hexagonal clamp 505 engages with the hexagonal groove 735 of the pin-shaft 73 to fix the pin-shaft 73, and then the third lifting push rod 502 drives the pin-shaft 73 to rise and clamp it into the through hole 723 of the deflector 72, and the torque connection is achieved by the cooperation of the convex key 734 and the keyway 724; the angle adjustment stage, the flip motor 506 drives the bevel gear meshing transmission to drive the support shaft 504 and the pin-shaft 73 to rotate, thereby driving the deflector 72 to rotate to the preset angle. After the adjustment is completed, the third lifting push rod 502 retracts, releasing the clamping of the hexagonal clamp 505 with the pin-shaft 73. The specific power transmission logic is as follows: The output shaft of the flip motor 506 drives the active bevel gear to rotate, and the active bevel gear meshes with the driven bevel gear to transmit power to the support shaft 504; the support shaft 504 rotates by engaging with the torque transmission groove of the driven bevel gear through the torque transmission protrusion; the hexagonal clasp 505 at the upper end of the support shaft 504 engages with the hexagonal groove 735 of the pin shaft 73, causing the pin shaft 73 to rotate synchronously; the pin shaft 73 engages with the keyway 724 of the through hole 723 of the deflector 72 through the convex key 734, causing the deflector 72 to rotate, thereby achieving angle adjustment; the extension and retraction of the third lifting push rod 502 drives the support shaft 504 and the pin shaft 73 to rise and fall, completing the engagement and disengagement of the pin shaft 73; the rotary joint 503 ensures that the rotation of the support shaft 504 does not affect the fixed posture of the third lifting push rod 502.
[0072] This embodiment also provides an intelligent drilling method for engine nacelle production, including the following steps:
[0073] S1. Workpiece loading and positioning: The air intake rectifier 6 is forked to the top of the opening assembly station. The vacuum pump 108 of the clamping assembly 1 is started. The annular adsorption block 107 generates adsorption force through the adsorption hole 111. The slot 109 is used to stably clamp the air intake rectifier 6. At the same time, the first lifting push rod 102 adjusts the height of the air intake rectifier 6 to the preset assembly position. The rotary drive 105 is in the ready-to-start state.
[0074] S2. I-shaped slot stamping: Start the slotting assembly 2. The first lead screw motor 204 drives the first lead screw 205 to rotate through the steering gear set. Since the first lead screw 205 has two first lead screw sections 206 with opposite rotation directions, it drives the two first movable plates 207 to move closer to each other. It synchronously drives the first horizontal push rod 208 to extend, so that the I-shaped punch 209 is aligned with the preset stamping position on both sides of the annular cavity 601 of the air intake shroud 6. The I-shaped punch 209 cooperates with the I-shaped stamping groove 203 on the pressure block 202 to complete the stamping of a set of I-shaped slots 602. After the stamping is completed, the first horizontal push rod 208 retracts, the first lead screw motor 204 reverses to drive the first movable plate 207 to reset, and the rotary driver 105 drives the air intake shroud 6 to rotate by a preset angle. Repeat the above actions to complete the uniform stamping of all I-shaped slots 602.
[0075] S3. Installation and positioning of the inner support reinforcement block: Place the inner support reinforcement block 71 in the positioning groove of the support block 305 of the inner support reinforcement block feeding and bending assembly 3. The positioning protrusion 306 is engaged with the bottom of the pin shaft engagement groove 714 of the inner support reinforcement block 71 to achieve precise positioning. Start the second lifting push rod 302 and the second telescopic joint tube 303 to move the inner support reinforcement block 71 into the annular cavity 601 of the air intake shroud 6, so that it fits against the inner wall of the annular cavity 601. Then start the second lead screw motor 307, drive the second lead screw 308 to rotate through the steering gear set, drive the two second movable plates 310 to move closer to each other, extend the second horizontal push rod 311, and the outward-turning claw of the first mechanical gripper 312 squeezes the two side plates at the I-shaped groove 602, so that they bend inward to form the bending limiting plate 603. The bending limiting plate 603 is engaged in the storage groove 712 of the inner support reinforcement block 71, completing the positioning and fixing of the inner support reinforcement block 71.
[0076] S4. Installation of spoiler: Activate the linear guide 401 of the spoiler transfer and positioning assembly 4 to move the third movable plate 402 to the storage position of the spoiler 72. The third horizontal push rod 403 extends, and the translational claw of the second mechanical gripper 404 clamps the spoiler portion 722 of the spoiler 72. Then, the linear guide 401 resets, and the third horizontal push rod 403 extends again to send the column portion 721 of the spoiler 72 into the connecting groove 713 of the inner support reinforcing block 71, completing the initial installation and positioning of the spoiler 72.
[0077] S5. Adjusting the angle of the spoiler: Attach the pin 73 to the hexagonal chuck 505 of the pin angle adjustment assembly 5, activate the third lifting push rod 502 to raise the pin 73, causing the narrow shaft portion 733 of the pin 73 to engage with the pin slot 714 of the inner support reinforcing block 71 and enter the through hole 723 of the spoiler 72. The convex key 734 and the keyway 724 cooperate to achieve torque transmission. Activate the tilting motor 506, which drives the support shaft 504 to rotate through the meshing of the active bevel gear and the driven bevel gear, thereby rotating the pin 73 and adjusting the spoiler 72 to the preset installation angle. After adjustment, the third lifting push rod 502 retracts, and the hexagonal chuck 505 separates from the pin 73.
[0078] S6. Locking and Unloading: Start the screw-tightening machine and screw the fasteners 74 into the fastening holes 715 from both sides of the inner support reinforcing block 71. The fasteners 74 cooperate with the locking grooves 725 of the column part 721 of the spoiler 72 to lock and fix the spoiler 72 and the inner support reinforcing block 71, thus completing the assembly of the combined spoiler 7. After all the combined spoilers 7 are assembled, the vacuum pump 108 stops working and releases the adsorption on the air intake shroud 6. The first lifting push rod 102 rises and forks the assembled air intake shroud 6 to the designated unloading position, thus completing the single hole opening assembly operation.
[0079] This invention addresses the technical challenges in the existing assembly process of opening holes in the engine nacelle air intake fairing. Through the design of an integrated intelligent device, it achieves full automation of the punching, assembly, positioning, and locking process.
[0080] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. An intelligent opening device for engine nacelle production, characterized in that, The system includes an opening assembly station, a clamping assembly located directly above the opening assembly station, and a punching assembly, an inner support reinforcement block feeding and bending assembly, a spoiler transfer and positioning assembly, a pin shaft clamping angle adjustment assembly, and a screw tightening machine arranged sequentially around the opening assembly station. The clamping assembly adsorbs and clamps the air intake fairing and drives it to rotate around its own axis. The punching assembly punches several sets of circumferentially evenly distributed I-shaped grooves on both sides of the annular cavity of the air intake fairing. The inner support reinforcement block feeding and bending assembly feeds in the inner support reinforcement block and bends the plates on both sides of the I-shaped groove to form bending and limiting plates that limit the inner support reinforcement block. The spoiler transfer and positioning assembly moves the spoiler to a preset position. The pin shaft clamping angle adjustment assembly clamps the pin shaft and adjusts the angle of the spoiler. The screwdriver screws in the fasteners to lock the spoiler and the inner support reinforcement block; the inner support reinforcement block, spoiler, pin and fastener constitute a combined spoiler, and is fixed by the bending limit plate at the corresponding original I-shaped groove. The inner support reinforcing block feeding and bending assembly includes a feeding base plate, a second lifting push rod, a second telescopic joint tube, a second channel plate, a support block, a positioning protrusion, a second lead screw motor, a second lead screw, a second movable plate, a second horizontal push rod, and a first mechanical gripper. The feeding base plate is supported and connected to the second channel plate via the second lifting push rod and the second telescopic joint tube. A support block is installed on the inner side of the web of the second channel plate. The upper end face of the support block has a positioning groove adapted to the shape of the inner support reinforcing block. The bottom surface of the positioning groove has a positioning protrusion adapted to the bottom of the pin engagement groove in the inner support reinforcing block for precise positioning of the inner support reinforcing block. A second lead screw motor is installed on the outer bottom of the support block. The output shaft of the second lead screw motor is connected to the middle part of the second lead screw via a steering gear set located inside the support block. The second lead screw is provided with movable support by the second slotted plate and the support block. The second lead screw has two sections with opposite rotation directions. Each second lead screw section has a second movable plate that is threadedly fitted to its outer side. The inner end of the second movable plate slides against the inner wall of the second slotted plate. A second horizontal push rod is fixedly installed at the outer end of the second movable plate. A first mechanical gripper is installed at the movable end of the second horizontal push rod. The first mechanical gripper has two outward-turning claws. The outward-turning claws can squeeze the two side plates at the I-shaped groove to achieve inward bending of the two side plates.
2. The intelligent opening device for engine nacelle production according to claim 1, characterized in that, The inner support reinforcing block includes a reinforcing block body adapted to the shape of the annular cavity in the air intake fairing. The inner and outer sides of the reinforcing block body are provided with receiving grooves for accommodating the bending limiting plate. A connecting groove is provided between the two receiving grooves to facilitate the installation of the spoiler and angle adjustment. The lower side of the reinforcing block body is recessed inward to form a pin engagement groove to facilitate the installation of the pin. Multiple sets of fastening holes adapted to fasteners are symmetrically provided on both sides of the reinforcing block body, and the fastening holes are connected to the connecting groove.
3. The intelligent opening device for engine nacelle production according to claim 2, characterized in that, The spoiler is integrally formed by a column and spoiler plates symmetrically fixed on both sides of the column. The column has a through hole adapted to the pin along its axial direction. The inner wall of the through hole is provided with a keyway. Multiple locking grooves are opened on the outer circumferential side of the column, and the height of the locking grooves is adapted to the height of the fastening hole on the reinforcing block body.
4. The intelligent opening device for engine nacelle production according to claim 3, characterized in that, The pin is formed by integrally molding an end head, a wide shaft part, and a narrow shaft part connected in sequence. The outer diameter of the narrow shaft part is adapted to the inner diameter of the perforation of the baffle. The outer side of the narrow shaft part is provided with a protruding key adapted to the keyway of the inner wall of the perforation. The bottom end of the end head is provided with a hexagonal groove to facilitate the rotation of the pin.
5. The intelligent opening device for engine nacelle production according to claim 4, characterized in that, The clamping assembly includes a clamping base plate, a first lifting push rod, a first telescopic joint tube, a mounting plate, a rotary driver, an annular carrier plate, an annular adsorption block, and a vacuum pump. The clamping base plate is supported and connected to the mounting plate via the first lifting push rod and the first telescopic joint tube. The bottom of the mounting plate is connected to the annular carrier plate via the rotary driver. An annular adsorption block is mounted on the lower side of the annular carrier plate, and a vacuum pump is mounted on the upper side. The bottom side of the annular adsorption block has a groove that matches the shape of the front edge of the air intake hood. The interior of the annular adsorption block has an adsorption cavity. The inner wall of the groove and the adsorption cavity are connected by several evenly distributed adsorption holes. The suction pipe of the vacuum pump is sealed and connected to the adsorption cavity. By drawing a vacuum with the vacuum pump, the adsorption holes generate adsorption force, thereby achieving stable clamping of the air intake hood.
6. The intelligent opening device for engine nacelle production according to claim 5, characterized in that, The grooving assembly includes a first grooved plate, a pressure block, a first lead screw motor, a first lead screw, a first movable plate, a first horizontal push rod, and an I-shaped punch. The pressure block, which can be inserted into an annular cavity of the air intake shroud, is installed on the inner side of the web of the first grooved plate. An I-shaped stamping groove adapted to the I-shaped punch is formed through the pressure block near the rear edge of the air intake shroud. The first lead screw motor is installed on the outer bottom of the pressure block. The output shaft of the first lead screw motor is connected to the middle of the first lead screw via a steering gear set located inside the pressure block. The first lead screw is movably supported by the first grooved plate and the pressure block. The first lead screw has two sections with opposite rotation directions. A first movable plate with threaded engagement is fitted onto the outer side of each first lead screw section. The inner end of the first movable plate slides against the inner wall of the first grooved plate. A first horizontal push rod is fixedly installed on the outer end of the first movable plate. An I-shaped punch adapted to the I-shaped stamping groove is installed on the movable end of the first horizontal push rod.
7. The intelligent opening device for engine nacelle production according to claim 6, characterized in that, The spoiler transfer and positioning assembly includes a linear guide pair, a third movable plate, a third horizontal push rod, and a second mechanical gripper. The inner end of the third movable plate is fixed to the outside of the slider of the linear guide pair and can slide along the linear guide pair with the slider. The outer end of the third movable plate is equipped with a third horizontal push rod, and the movable end of the third horizontal push rod is equipped with a second mechanical gripper. The second mechanical gripper has two translational claws, which can accurately clamp the spoiler portion of the spoiler to realize the transfer and positioning of the spoiler.
8. The intelligent opening device for engine nacelle production according to claim 7, characterized in that, The pin-shaft clamping angle adjustment assembly includes a feeding bracket, a third lifting push rod, a rotary joint, a support shaft, a hexagonal clamp, a tilting motor, and a gearbox. The feeding bracket is equipped with the third lifting push rod, the tilting motor, and the gearbox. The movable end of the third lifting push rod is rotatably connected to the lower end of the support shaft via the rotary joint. The upper end of the support shaft is equipped with a hexagonal clamp that fits into a hexagonal slot for clamping and fixing the pin-shaft. Symmetrically arranged axially extending torque-transmitting grooves are provided on the outer side of the support shaft. The output shaft of the tilting motor extends into the gearbox and is equipped with a driving bevel gear. A driven bevel gear that meshes with the driving bevel gear is sleeved on the outer side of the shaft body inside the gearbox. Symmetrically arranged torque-transmitting protrusions that fit into the torque-transmitting grooves of the support shaft are provided on the inner wall of the driven bevel gear. Through the meshing transmission of the driving bevel gear and the driven bevel gear, the support shaft is driven to rotate, thereby driving the pin-shaft to rotate and adjust the angle of the deflector.
9. An intelligent drilling method for engine nacelle production, implemented based on the intelligent drilling device for engine nacelle production as described in claim 8, characterized in that, Includes the following steps: S1. Workpiece loading and positioning: The air intake rectifier is forked to the top of the opening assembly station. The vacuum pump of the clamping component is started. The annular adsorption block generates adsorption force through the adsorption hole. The slot is used to stably clamp the air intake rectifier. At the same time, the first lifting push rod adjusts the height of the air intake rectifier to the preset assembly position. The rotary drive is in the ready-to-start state. S2. I-shaped slot stamping: Start the slotting assembly. The first lead screw motor drives the first lead screw to rotate through the steering gear set. Since the first lead screw has two sections with opposite rotation directions, it drives the two first movable plates to move closer to each other. It synchronously drives the first horizontal push rod to extend, so that the I-shaped punch is aligned with the preset stamping position on both sides of the annular cavity of the air intake shroud. The I-shaped punch cooperates with the I-shaped stamping slot on the pressure block to complete the stamping of a set of I-shaped slots. After the stamping is completed, the first horizontal push rod retracts, the first lead screw motor reverses to drive the first movable plate to reset, and the rotary driver drives the air intake shroud to rotate by a preset angle. Repeat the above actions to complete the uniform stamping of all I-shaped slots. S3. Installation and Limiting of Inner Support Reinforcing Block: Place the inner support reinforcing block into the positioning groove of the support block of the inner support reinforcing block feeding and bending assembly. The positioning protrusion is engaged with the bottom of the pin engagement groove of the inner support reinforcing block to achieve precise positioning. Activate the second lifting push rod and the second telescopic joint tube to move the inner support reinforcing block into the annular cavity of the air intake shroud, so that it fits against the inner wall of the annular cavity. Then, activate the second lead screw motor to drive the second lead screw to rotate through the steering gear set, causing the two second movable plates to move closer to each other. The second horizontal push rod extends, and the outward-turning claws of the first mechanical gripper press against the two side plates at the I-shaped groove, causing them to bend inward to form a bending limiting plate. The bending limiting plate is engaged in the storage groove of the inner support reinforcing block to complete the limiting and fixing of the inner support reinforcing block. S4. Spoiler Installation: Activate the linear guide pair of the spoiler transfer and positioning assembly, which drives the third movable plate to move to the spoiler storage position. The third horizontal push rod extends, and the translational claw of the second mechanical gripper clamps the spoiler plate part of the spoiler. Then the linear guide pair resets, and the third horizontal push rod extends again to send the column part of the spoiler into the connecting groove of the inner support reinforcing block, completing the initial installation and positioning of the spoiler. S5. Adjustment of spoiler angle: Connect the pin to the hexagonal head of the pin angle adjustment assembly, start the third lifting push rod, drive the pin to rise, so that the narrow shaft part of the pin is inserted from the pin engagement slot of the inner support reinforcing block into the through hole of the spoiler, and the convex key and keyway cooperate to realize the torque transmission connection. Start the tilting motor, and drive the support shaft to rotate through the meshing transmission of the active bevel gear and the driven bevel gear, which in turn drives the pin to rotate, adjust the deflector to the preset installation angle, and after the adjustment is completed, the third lifting push rod retracts, and the hexagonal chuck separates from the pin; S6. Locking and Unloading: Start the screw-tightening machine and screw the fasteners into the fastening holes from both sides of the inner support reinforcing block. The fasteners engage with the locking grooves of the spoiler column to lock and fix the spoiler to the inner support reinforcing block, completing the assembly of the combined spoiler. After all the combined spoilers are assembled, the vacuum pump stops working, releasing the suction on the intake fairing. The first lifting push rod rises and forks the assembled intake fairing to the designated unloading position, completing the single hole-opening assembly operation.